Phonograph.



P. CATUCI.

PHONOGRAPH.

APPLICATION NLED MAYle, 1912.

Patented Feb. 2, 1915* 4 SHEETS-SHBBT 1A mmm mmmmmmmm mmmm mmmmmmmm mmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmm 7 mmmmmmmmmmmmmm mmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmm mmmmmmmm'mmmmmm P. CATUCGI.

PHONOGRAPH.

APPLIOATION FILED MAY 15, 1912.

Patented Feb. 2, 1915.

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P. GATUCCI.

PHoNoGRAPH. APPLICATION FILED MAY l5, 1912.

Patented Feb.2,1915.

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PHoNoGRAPH.

APPLICATION FILED MAY 15l 1912. 1,126,703, Patented Feb. 2, 1915 4 SHEETS-SHEET 4.

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- ILINY CATUCCI,

0F NEWARK, NEW JERSEY, ASSIGNOR TO A. F. -MIESSELBACH &

BROTHER, A CORPORATION NEW JERSEY.

' PHONOGRAPH.

nieuwe.

To all whom it may conce-rn:

Be it known that I, PLINY CATUCGI, a citizen of the United States. residing in the city of Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Phonographs, of which the following is a specification.

t The prime object of my invention is to so construct the case of a phonograph as to provide in itself sound amplifying means without special adaptation of the sound conductor-.or so called horn.

In phonographs of the disk type, as at the present day constructed, it is the practice either to lead a sound conductor or tube to an external sound amplifying horn or lead such tube to the upper face (if the case, and thence construct within the case a more or less distorted funnel,sh'aped sound amplifier, the degree of distortion. depending of course upon the' space within this case after the motor and other operating parts have been provided for. After a series of exhaustive experimentsfI have 'found that the case itself, without material modification, might be utilized as a sound amplifying device so that the distorted amplifierJ above referred to, may be -wholly dispensed with and a simple deiiector of metal, Wood fiber, or other suitable material may be located adjacent to the'exit of the sound waves'from the con ductor when substantially the same results and even in some cases better results have been obtained than by the old form of structure. I have also discovered that the use of' reflectors, constructed upon the mathethat with the conic section` flector and thence be c direction in accordance withfhe yparticular of the conic section gives matical principle than it is possible to obar better results tain by means of the old form of horn,

either of the external or internal type. These conic section reflectors may be semielliptical, parabolic, or hyperbolic, or in some cases they may be semi-spherical, depending of course upon the degree of con- ;centrati'on and directness with which the be delivered from the to be understood for-m otsound reflector, the sound from the conductor must be delivered at the focus of the reiector whence it may radiate to the face of the 'redeiected iii-the proper sound waves should machine. Of course it 1s form of reliect'or used.

Specification of Letters Patent.

. 1 Application filed May 15, 1912. Serial No. 697,426.

1 the same to the bottom,

Patented Feb. 2, 1915.

In carrying out my invention, I make use of the structures illustrated in the accompanying drawings, and described in detail in the following specification.

Figure 1 is a plan view of the complete phonograph. Fig. 2 is a side elevation of the same. `3-3 of Fig. 1. Fig. f1 is a horizontal section through line 4.-4 of Fig. 3. Fig. 5 is a detached plan View of the perforated side cover of the case. Fig. 6 is an insidevelevation of one Section of the cover. Fig. 7 is an outside elevation of the same. Fig. 8A is an end view of the sound box and conductor in playing position.' Fig. 9 is a similar section view but with the sound box reversed or elevated for the purpose of replacing the stylus needle. Figs. 10 and 11 are vertical cross Sections on line 10, 11 of Fig. 3, showing the two positions of the sound box tube. Figs. 12 and 13, show diagrammatically curved delectors. y

Similar reference numerals refer to like parts throughout the specifications and drawings.

The case 1 of the phonograph is of the usual rectangular form and is illustrated in the drawings as having the cover 2, bottom 3, and two sides 4 and 5. I also provide a single support post 6, as' shown in Fig. 4, for the vpurpose of supporting the overhanging angle of the cover and connecting so as to render the case rigid. 'The two remaining sides of the case may either be left open entirely or they may be covered with a perforated sheet of metal 7, bent in the middle at a right angle -to conform to the shape of the case, the extreme ends of this sheet of metal may be secured to the sides 4 and 5 by the screws 8. This sheet of metal, for the purposeoi permitting the free exit of the sound waves f, emanating from the-sound' box, may be perforated in any suitable or desired design, but I have found that the cular or crescent cuts pressing. the same inwardly, several of the drawings, gives through the material as shown 1n very good re- Fig'. 3 is a vertical section on line stamping of semi-cnsults and' does not materially muiile the" sound. This 'perforated cover 7 may be made oi wood, wood veneer, sheet metal, sheet fiber, vulcanized rubber, or a y materialfromwhich it lcan be cheaply and readily" made, or .molded to conform to the contoury of the/easejsubstantially. .ha shown. l f

The sound box and sound conveyer tube may be of any usual or preferred type, as for example, such as are illustrated in my prior patent applications, Ser. Nos. 693,352-

and 693,353, or the conveyer tube itself may be constructed as illustrated in i several of the other figures. In this case, I provide the tubular standard?) secured to the cover of thecas'e in any convenient manouterend of which projects the tapering bearing section 14. Extending within the horizontal parts, as thus described, .is the sound box tube section 15 to the inner end of which is coupled the bearing' section 16, the

diameter of the latter being such as to nicely fit the horizontal section of the elbow, 12.

The sections 15 and 16 may be secured to`A getlier in any convenient manner so as to be Fig. 3 vandv substantiallv rigid. as for example, by 'means of the rivet 17. The inner section 16 is provided with acircumferential slot 18 into which extends the ieduced end of th'e `screw 19, which latter ,is screw threaded into the horizontal section of the elbow 12, the purpose of which is to vaxially limit the oscilla.h tions of the tube section 15 and 16.

From an inspection of Figs. 8, 9, 10 and 11, iti will befseen that the sound box with the elbow tube 15, may be swung into the playing .position shown in Fig. 8, or it may be swung into the upper position shown in Fig. 9, in which latter position the needle of the sound box may be replaced. In practice. when the needle rests upon the surface of the record, the tube 16 will be in the pothe free .end of the sound box tube 15, to swing in the arc of a horizontal circle, parallel to the plane of the tablet support 45.

The record tablet support 45, is detachably mountedupon the upper end of shaft 44. This support consists simply of a diskv of metal pressed. to shape with the overhanging flange 55.

66 is a brake plate'secured to the top lofthe case upon which the pivoted lever 73 is mounted, said lever having a finger piece '(4, at its free extremity. By the use of this brake lever 73, the rotation of the record tablet support 45 may be quickly stopped.

hitherto been the case-conducted within c'on-v l lined. walls to the open atmosphere. The projection of the sound waves into the open case now requires some means by which they may be deflected or reflected into the open atmosphere. I have, as hitherto indicated,

provided several means for so deflecting or reflecting the sound waves, all of which means embody the same principle, which is the employment of a curved surface of revelution of some one of the conic sections, as for example, the circle, the ellipse, the parabola., or the hyperbola-that is to say, the surface of a sphere, an ellipsoid, a paraboloid or an hyperboloid. In practice' how.

ever, I use a half conic'sectioninasmuch as to use the whole conic section of revolution would too materially enlarge the case.y As shown in Fig. 3, the dotted curved line Within the case illustrates the section which such a reflector may take and may diagrammatically represent any one of the conic sections with the exit from the sound conductor el.

sition shown in section in lfig. 10, with the slot 18, just out of contact with the point of the screw 19, so that the overhanging weight of the offset vsound box will cause the needle to bear with requisite pressure upon the face of the record and yet follow the irregularities of the record, due either to the warping of the saine or the uneven running of the tablet support or turn-table, 45. In the position shown in Fig. 8, the sound box is free to rise and fall with such irregularities of movement without interference between the point o f the screw 19, 'and the end of the bow 12 located substantially at the focus of the conic section. A I thus employ one of the well known principles of the concentration of sound by means of a reflector so placed as to direct the sound to the open atmosphere and gain the largest and best results.

In practice, I find it somewhat diiiicult and expensive to construct conic section de? iio flectors for the cheaper gra-de of instru- ,f ments and to take advantage of the prin` Y ciplev and secure the best results within reasonable limits, I lobtain very admirable sound effects from using a simple plane deflector 80 locating the saine iii the corner of the case, as illustrated in Figs. 3 and 4 with its upper face lying in a plane tangent to the theoretically correct conic section curve. This may be a shaped to fit 'the corner, or it may be constructed of fiber', metal, rubber, papier inch, or any suitable material either-with piece of plane wood properly that the slight noise or rattle of the same would interfere with the sound waves coming from the record. IThis however, is not the case, and in practice there seems` to be no interference whatsoever even though the motor is located in substantially the direct line of the sound` ln order however, to protect the motor from the access to dust and dirt and the like, which may be floating in the atmosphere, I may provide a cover .S5 for the same such cover-completely inclosing the motor against the under side of4 the cover of the case.

l do not wish it considered or understood thatl regard the various forms of conic sections to be utilized for the sound amplifying device to be modifications, as they are different forms for accomplishing slightly varying results. For example, phonographs of various grades are manufactured and put upon the market. The highgrade and expensive instrument will warrant the installations of the most perfect, type of conic section deflector, while the expense of such a deiector in the low grade instrument would be prohibitive, and lyet there is a wider market for a low grade instrument. l make use of the deflectorfbdard 80 as illustfated in Fig. 3 locating the plane of the same in thel tangent to the theoretically correct conic section. lt will thus be seen that,

I accomplish, by the structure in thedrawings as described above, 'all of the objects and purposes originally set out, and that the resulting structure is an instrument which may vary through all of the regu-I lar manufacturing grades.

ln Figs. 12 and 13, l have shown diagrammatically, the location of the parabolic'reflector as at 8l., and the hyperbolic reiector as at 82, with the exit for the sound waves from theconveyer 12, as located at the focus of the curves.

i claim:

l. En a phonograph, a .rectangulanhox or case, means for conveying" sound waves to the interior of said case at one corner of its top, and sound amplifying means comprising the under face of the top of said case and a sound reiiector within said case and extending into the corner 'thereof adjacent to the point Where the sound waves enter the interior cf said case, the surface of said refiector being one half of the surface generated by the revolution of a conic section.

2. in 'a phonograph, a rectangular case open on two' of itsjadjacent sides and closed upon its top, bottom andv two, remaining sides, means for conveying sound waves to the interior of said case through'one corner of the top thereof adjacent to the angle be- .tween said closedsides, and sound amplifying means comprising the under face of the top of said case and a sound reector located in said case and extending into` the angle between said closed sides adjacent to the point where the sound waves enter said case, said reflector being one half the surface generated by the revolution of a conic section.

3. In a phonograph, a rectangular case open upon two adjacent sides and closed upon its top, bottom and two remaining sides, means for conveying 4sound waves to the interior of said case through one corner of the top thereof, and sound amplifying means comprising the under face of the top of said case and a sound refiector located within said case and extending into the angle between its two closed sides adjacent to the point where the sound waves enter said case, said sound reflector being one half the surface generated by the revoluone v'corner of said case and communicating with the interior thereof, and sound amplifying means comprising the under face of the top of said case anda sound reflector located within said case, said reflector being one half the surface generated by the revolution of a conic section and having the focus of said surface coincident with the under face of the top of' said case and located at the point Where the sound waves enter said case. i.

5. In a phonograph, a rectangular box or case lhaving means for conveying sound waves to the interior of said case at one corner of 'its top, and sound amplifying means comprising the under face of the top 6. In a phonograph, a rectangular case open upon two adjacent sides and closed at its top, bottom and two remaining sides,

lmeans for conveying sound waves to the interior of said case through one corner of the top thereof, and sound amplifying means l comprising the under face of the top of said case and a sound reflector located within saidcase and extending into the angle between its two closed sides, said reflector beingd one half the surface of a parabolod with the focus thereof coincident with the thereof coincident with point where-the sound Waves enter the in-l terior of said case. l A' 7. In a phonograph, a rectangular box or ease having means for conveying sound Waves to the interior of said case at one Icorner of its top, and sound an'iplifying 8. In a phonograph, a rectangular case v .its top,

open upon'two adjacent sides and closedat its top, bottom and two remaining sides, means for conveying sound waves to the interior of said case through one-corner of and sound prising the under face of the top of said case and a sound reflector located Within said case and extending into the angle between its two closed sides, said reflector being one half the surface of a paraboloid and having the vfocus thereof coincident with the under face of said case.

9. In a talking machine, the combination of a tubular tone arm normally extending toward the record to be played and pivoted to swing in a horizontal plane, a sound box tube having a rectangular bend therein, one

arm of which tube is inserted into said tone' l arm to permit the other arm of said tube to oscillate in a Vertical plane, and means amplifying means'comforp'ermitting a free but limited oscillation of said sound box tube around" the axis of said tone arm.

10. In a talking machine, the combination of "a tubular tone arm normally extending toward the record to be played and adapted to swing in a horizontal plane, a sound box tube inserted into the free end of, and in axial alinement with said tubular tone arm,

said sound box tube having a rectangularl ing toward the record to be played and` adapted to swing in a horizontal plane, a ,sound box tube inserted into the free end of said tonearm and in axial alinement therewith, a circumferential slot in said sound box tube, and a screw pin inserted into said tone arm for engagement with said slot whereby said sound box tube may have a free but limited axial oscillation Within said tone arm. I y

In testimony whereof I have hereunto set my hand this 10th day May, 1912.

PLINY CATUCCI.

l/Vitnesses NORMAN E. ZUSI, AUGUST F. liIEissELBaCH.

*opies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C.

a free but limited oscillasound box tube around the axis' 

